141 lines
4.2 KiB
Kotlin
141 lines
4.2 KiB
Kotlin
/*
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* Copyright 2016 JetBrains s.r.o.
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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@file:Suppress("unused", "NOTHING_TO_INLINE")
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package org.jetbrains.anko.collections
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/**
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* Iterate the receiver [Array] using an index.
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*
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* @f an action to invoke on each array element.
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*/
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@Deprecated(message = "Use the native Kotlin version", replaceWith = ReplaceWith("forEach(f)"))
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inline fun <T> Array<T>.forEachByIndex(f: (T) -> Unit) {
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val lastIndex = size - 1
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for (i in 0..lastIndex) {
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f(get(i))
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}
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}
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/**
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* Iterate the receiver [Array] using an index.
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*
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* @f an action to invoke on each array element (index, element).
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*/
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@Deprecated(
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message = "Use the native Kotlin version",
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replaceWith = ReplaceWith("forEachIndexed(f)")
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)
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inline fun <T> Array<T>.forEachWithIndex(f: (Int, T) -> Unit) {
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val lastIndex = size - 1
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for (i in 0..lastIndex) {
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f(i, get(i))
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}
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}
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/**
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* Iterate the receiver [Array] backwards using an index.
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*
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* @f an action to invoke on each array element.
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*/
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inline fun <T> Array<T>.forEachReversedByIndex(f: (T) -> Unit) {
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var i = size - 1
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while (i >= 0) {
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f(get(i))
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i--
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}
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}
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/**
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* Iterate the receiver [Array] backwards using an index.
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*
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* @f an action to invoke on each array element (index, element).
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*/
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inline fun <T> Array<T>.forEachReversedWithIndex(f: (Int, T) -> Unit) {
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var i = size - 1
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while (i >= 0) {
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f(i, get(i))
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i--
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}
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}
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///**
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// * Create a [Sequence] instance that wraps the original [SparseArray] returning its elements when being iterated.
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// */
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//inline fun <T> SparseArray<T>.asSequence(): Sequence<T> = SparseArraySequence(this)
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//
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///**
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// * Create a [Sequence] instance that wraps the original [SparseBooleanArray] returning its elements when being iterated.
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// */
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//inline fun <T> SparseBooleanArray.asSequence(): Sequence<Boolean> = SparseBooleanArraySequence(this)
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//
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///**
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// * Create a [Sequence] instance that wraps the original [SparseIntArray] returning its elements when being iterated.
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// */
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//inline fun <T> SparseIntArray.asSequence(): Sequence<Int> = SparseIntArraySequence(this)
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//
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//@PublishedApi
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//internal class SparseArraySequence<T>(private val a: SparseArray<T>) : Sequence<T> {
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// override fun iterator(): Iterator<T> = SparseArrayIterator()
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//
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// private inner class SparseArrayIterator : Iterator<T> {
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// private var index = 0
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// private val size = a.size()
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//
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// override fun hasNext() = size > index
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//
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// override fun next(): T {
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// if (a.size() != size) throw ConcurrentModificationException()
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// return a.valueAt(index++)
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// }
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// }
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//}
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//
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//@PublishedApi
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//internal class SparseBooleanArraySequence(private val a: SparseBooleanArray) : Sequence<Boolean> {
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// override fun iterator(): Iterator<Boolean> = SparseIntArrayIterator()
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//
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// private inner class SparseIntArrayIterator : Iterator<Boolean> {
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// private var index = 0
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// private val size = a.size()
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//
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// override fun hasNext() = size > index
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//
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// override fun next(): Boolean {
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// if (a.size() != size) throw ConcurrentModificationException()
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// return a.get(index++)
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// }
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// }
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//}
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//
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//@PublishedApi
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//internal class SparseIntArraySequence(private val a: SparseIntArray) : Sequence<Int> {
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// override fun iterator(): Iterator<Int> = SparseIntArrayIterator()
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//
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// private inner class SparseIntArrayIterator : Iterator<Int> {
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// private var index = 0
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// private val size = a.size()
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//
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// override fun hasNext() = size > index
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//
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// override fun next(): Int {
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// if (a.size() != size) throw ConcurrentModificationException()
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// return a.get(index++)
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// }
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// }
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//}
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